CN208886003U

CN208886003U - Multifunctional stop valve

Info

Publication number: CN208886003U
Application number: CN201821595053.2U
Authority: CN
Inventors: 叶平
Original assignee: Fuzhou Fubei Natural Gas Co Ltd
Current assignee: Fuzhou Fubei Natural Gas Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2019-05-21
Anticipated expiration: 2028-09-28

Abstract

The utility model relates to pipeline union piece technical fields, and Multifunctional stop valve being disclosed, including valve body, the surface wrap of the valve body has electric tracing thermal insulation set, the inside of the valve body offers top cut-off slot and bottom cut-off slot, and the both ends of the valve body offer link slot.The Multifunctional stop valve, by injecting general-purpose grease in the inside of maintenance liquid bath, general-purpose grease is mainly modulated by mineral oil (or synthetic lubricant fluid) and thickening agent, there is lubrication, sealing, fill the effect in gap and antirust, the sealing performance of valve deck and thread bush can effectively be enhanced, by the way that ring packing block is arranged, ring packing block is HNBR hydrogenated nitrile-butadiene rubber sealing ring, the inner wall of ring packing block is close to the surface of valve rod, the leakproofness of valve body and valve deck can effectively be enhanced, by the way that filler is arranged, filler is the soft close material of PTFE, it is tightly pushed down with pressing ring at the top of filler, the leakproofness of valve deck can effectively be enhanced.

Description

Multifunctional stop valve

Technical field

The utility model relates to pipeline union piece technical field, specially a kind of Multifunctional stop valve.

Background technique

Shut-off valve is also pipe valve, is a kind of most popular valve, and why very popular it is, is due to being opened and closed Frictional force is small between sealing surface in journey, relatively durable, Lift is little, and manufacture is easy and easy to maintenance, is applicable not only to Low pressure, and it is suitable for high pressure, the closure principle of shut-off valve is, by valve stem pressure, to make valve clack sealing surface and sealing surface of seat It fits closely, prevents flow of media.

Existing shut-off valve is mainly made of valve body, flap, valve deck and valve rod etc., and valve body and valve deck are pressure part, flap It is internals with valve rod, flap is moved along valve seat center line, and according to this shifted version of flap, the variation of valve seat port is and valve Valve stroke direct proportionality, shut-off valve are divided into right-angle type, through type and single flow by the structure type of valve body.

Current existing shut-off valve can play the role of cutting and throttling to the medium in pipeline, but sealing effect is not Good, the medium in pipeline is easy to overflow, and daily maintenance is not also easy to operate, and winter is easy to endure cold, and leads to the use of shut-off valve Service life is short, therefore proposes a kind of Multifunctional stop valve to solve the above problems.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of Multifunctional stop valve, has sealing and is easy dimension The advantages that shield, cutting and throttling can be played the role of to the medium in pipeline by solving current existing shut-off valve, but close Envelope effect is bad, and the medium in pipeline is easy to overflow, and daily maintenance is not also easy to operate, and winter is easy to endure cold, and causes to end The short problem of the service life of valve.

(2) technical solution

To realize that above-mentioned sealing and easy maintenance purpose, the utility model provide the following technical solutions: Multifunctional stop valve, Including valve body, the surface wrap of the valve body has electric tracing thermal insulation set, and the inside of the valve body offers top cut-off slot and bottom Portion ends slot, and the both ends of the valve body offer link slot, the top inner bottom wall of the valve body and is located at top and ends groove top Portion is fixedly installed with ring packing block, and the screw top of the valve body is connected with valve deck, and the screw top of the valve deck is connected with Pressure cap, the internal whorl of the valve deck are connected with the valve rod extended to outside top cut-off slot and pressure cap, the top of the valve rod It is fixedly installed with fixed block, is fixedly installed with handwheel at the top of the fixed block, the inside of the valve body and is located at, the valve rod Bottom and be located at and offer middle part between top cut-off slot and bottom cut-off slot and end slot, the bottom of the valve rod is fixedly mounted There is the flap extended to inside middle part cut-off slot, offers maintenance liquid bath, the top and position of the valve deck at the top of the valve deck Filler is installed in maintenance liquid bath internal activity, is fixedly installed with pressing ring at the top of the filler.

Preferably, the valve body and valve deck are that steel-casting, the valve body and valve deck are threadedly coupled for self-sealing, the valve body Top offer thread groove, between the valve body and valve deck and be located at thread groove at the top of be fixedly installed with annular gasket.

Preferably, the surface wrap of the valve body has ramie cotton fabric, and the ring packing block is HNBR hydrogenated nitrile-butadiene rubber Sealing ring, the diameter of the ring packing block are less than the diameter of annular gasket.

Preferably, the flap nitrile rubber NBR, the top of the flap be it is round table-like, the bottom of the flap is circle Cylinder, the bottom of the flap are that the diameter of cylindrical body is less than the diameter that slot is ended at middle part.

Preferably, the top of the maintenance liquid bath is infundibulate, and the inside of the maintenance liquid bath is injected with general-purpose grease, General-purpose grease is the grease-like semisolid of stiff.

Preferably, the valve rod be nitrided steel, the surface of the valve rod and be located at maintenance liquid bath inside be fixedly installed with spiral shell Line set is filled with general-purpose grease in the gap that the thread bush block connects with valve deck.

Preferably, the filler is the soft close material of PTFE, and the filler is identical with the shape size of pressing ring.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of Multifunctional stop valve, have it is following the utility model has the advantages that

1, the Multifunctional stop valve, by maintenance liquid bath inside inject general-purpose grease, general-purpose grease mainly by Mineral oil (or synthetic lubricant fluid) and thickening agent are modulated, and play the role of lubrication, sealing, filling gap and antirust, Neng Gouyou The sealing performance of effect enhancing valve deck and thread bush, by the way that ring packing block is arranged, ring packing block is HNBR hydrogenated nitrile-butadiene rubber Sealing ring, the inner wall of ring packing block are close to the surface of valve rod, can effectively enhance the leakproofness of valve body and valve deck, pass through setting Filler, filler are the soft close material of PTFE, and the top of filler is tightly pushed down with pressing ring, can effectively enhance the leakproofness of valve deck.

2, the Multifunctional stop valve maintains liquid bath by setting, and the top for maintaining liquid bath is infundibulate, and maintenance can be made to infuse It is more convenient when rouge, by setting electric tracing thermal insulation set and in the surface wrap ramie cotton fabric of valve body, it can effectively enhance valve body Resistance to frost, cutting and throttling can be played the role of to the medium in pipeline by solving current existing shut-off valve, still Sealing effect is bad, and the medium in pipeline is easy to overflow, and daily maintenance is not also easy to operate, and winter is easy to endure cold, and causes to cut The only short problem of the service life of valve.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the structure enlargement diagram of the utility model Fig. 1.

In figure: 1 valve body, 2 electric tracing thermal insulation sets, 3 top cut-off slots, 4 bottoms cut-off slot, 5 link slots, 6 pressing rings, 7 annulars Sealing block, 8 valve decks, 9 pressure caps, 10 valve rods, 11 fixed blocks, 12 handwheels, 13 middle part cut-off slots, 14 flaps, 15 maintenance liquid baths, 16 Filler.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Multifunctional stop valve referring to FIG. 1-2, including valve body 1, the surface wrap of valve body 1 have electric tracing thermal insulation to cover 2, valve The inside of body 1 offers top cut-off slot 3 and bottom cut-off slot 4, and the both ends of valve body 1 offer link slot 5, the top of valve body 1 Portion's inner bottom wall and be located at top cut-off slot 3 at the top of be fixedly installed with ring packing block 7, the screw top of valve body 1 is connected with valve deck 8, the screw top of valve deck 8 is connected with pressure cap 9, and the internal whorl of valve deck 8, which is connected with, to be extended to outside top cut-off slot 3 and pressure cap 9 The valve rod 10 in portion, the top of valve rod 10 are fixedly installed with fixed block 11, and the top of fixed block 11 is fixedly installed with handwheel 12, valve body 1 inside and it is located at, the bottom of valve rod 10 and is located at and offers middle part between top cut-off slot 3 and bottom cut-off slot 4 and end slot 13, the bottom of valve rod 10 is fixedly installed with the flap 14 extended to inside middle part cut-off slot 13, and the top of valve deck 8 offers maintenance Liquid bath 15, the top of valve deck 8 and be located at maintenance 15 internal activity of liquid bath filler 16 is installed, the top of filler 16 is fixedly installed with Pressing ring 6, by injecting general-purpose grease in the inside of maintenance liquid bath 15, general-purpose grease mainly (or synthesizes lubrication by mineral oil Oil) and thickening agent modulate, play the role of lubrication, sealing, fill gap and antirust, can effectively enhance valve deck 8 and screw thread The sealing performance of set, by the way that ring packing block 7 is arranged, ring packing block 7 is HNBR hydrogenated nitrile-butadiene rubber sealing ring, and annular is close The inner wall for sealing block 7 is close to the surface of valve rod 10, can effectively enhance the leakproofness of valve body 1 and valve deck 8, by the way that filler 16 is arranged, Filler 16 is the soft close material of PTFE, and the top of filler 16 is tightly pushed down with pressing ring 6, can effectively enhance the leakproofness of valve deck 8, is led to Cross setting maintenance liquid bath 15, maintenance liquid bath 15 top be infundibulate, can make maintain greasing when it is more convenient, pass through setting electricity Tracing thermal-insulating set 2 and valve body 1 surface wrap ramie cotton fabric, can effectively enhance the resistance to frost of valve body 1, solve mesh Preceding existing shut-off valve can play the role of cutting and throttling to the medium in pipeline, but sealing effect is bad, in pipeline Medium be easy to overflow, and daily maintenance is not also easy to operate, and winter is easy to endure cold, and causes the service life of shut-off valve is short to ask Topic.

In conclusion the Multifunctional stop valve, by injecting general-purpose grease, general lubrication in the inside of maintenance liquid bath 15 Rouge is mainly modulated by mineral oil (or synthetic lubricant fluid) and thickening agent, there is lubrication, sealing, the work for filling gap and antirust With, can effectively enhance the sealing performance of valve deck 8 and thread bush, by be arranged ring packing block 7, ring packing block 7 be HNBR Hydrogenated nitrile-butadiene rubber sealing ring, the inner wall of ring packing block 7 are close to the surface of valve rod 10, can effectively enhance valve body 1 and valve deck 8 Leakproofness, by the way that filler 16 is arranged, filler 16 is the soft close material of PTFE, and the top of filler 16 tightly pushed down with pressing ring 6, can The effectively leakproofness of enhancing valve deck 8.

Also, the Multifunctional stop valve maintains liquid bath 15 by setting, and the top of maintenance liquid bath 15 is infundibulate, can Make maintain greasing when it is more convenient, by setting electric tracing thermal insulation cover 2 and valve body 1 surface wrap ramie cotton fabric, Neng Gouyou The resistance to frost of effect enhancing valve body 1, cutting and throttling can be played to the medium in pipeline by solving current existing shut-off valve Effect, but sealing effect is bad, and the medium in pipeline is easy to overflow, and daily maintenance is not also easy to operate, and winter is easy It endures cold, the problem for causing the service life of shut-off valve short.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. Multifunctional stop valve, including valve body (1), it is characterised in that: the surface wrap of the valve body (1) has electric tracing thermal insulation set (2), the inside of the valve body (1) offers top cut-off slot (3) and bottom cut-off slot (4), and the both ends of the valve body (1) are opened Equipped with link slot (5), the top inner bottom wall of the valve body (1) and be located at top cut-off slot (3) at the top of be fixedly installed with annular it is close It seals block (7), the screw top of the valve body (1) is connected with valve deck (8), and the screw top of the valve deck (8) is connected with pressure cap (9), the internal whorl of the valve deck (8) is connected with the valve rod (10) for extending to top cut-off slot (3) and pressure cap (9) outside, institute It states and is fixedly installed at the top of valve rod (10) fixed block (11), be fixedly installed with handwheel (12) at the top of the fixed block (11), The bottom of the valve rod (10) and be located at top cut-off slot (3) and bottom cut-off slot (4) between offer middle part cut-off slot (13), The bottom of the valve rod (10), which is fixedly installed with, extends to the internal flap (14) of middle part cut-off slot (13), the valve deck (8) Top offer maintenance liquid bath (15), the top of the valve deck (8) and be located at maintenance liquid bath (15) internal activity filler is installed (16), pressing ring (6) are fixedly installed at the top of the filler (16).

2. Multifunctional stop valve according to claim 1, it is characterised in that: the valve body (1) and valve deck (8) are cast steel Part, the valve body (1) and valve deck (8) are self-sealing threaded connection, offer thread groove, the valve at the top of the valve body (1) Annular gasket is fixedly installed between body (1) and valve deck (8) and at the top of thread groove.

3. Multifunctional stop valve according to claim 1, it is characterised in that: the surface wrap of the valve body (1) has linen-cotton Fabric, the ring packing block (7) are HNBR hydrogenated nitrile-butadiene rubber sealing ring, and the diameter of the ring packing block (7) is less than ring The diameter of shape gasket.

4. Multifunctional stop valve according to claim 1, it is characterised in that: flap (14) the nitrile rubber NBR, it is described The top of flap (14) be it is round table-like, the bottom of the flap (14) is cylindrical body, and the bottom of the flap (14) is cylindrical body Diameter be less than middle part cut-off slot (13) diameter.

5. Multifunctional stop valve according to claim 1, it is characterised in that: the top of maintenance liquid bath (15) is funnel Shape, the inside of maintenance liquid bath (15) are injected with general-purpose grease, and general-purpose grease is the grease-like semisolid of stiff.

6. Multifunctional stop valve according to claim 1, it is characterised in that: the valve rod (10) is nitrided steel, the valve The surface of bar (10) and be located at maintenance liquid bath (15) inside be fixedly installed with thread bush, the thread bush block connects with valve deck (8) Gap in be filled with general-purpose grease.

7. Multifunctional stop valve according to claim 1, it is characterised in that: the filler (16) is the soft close material of PTFE, The filler (16) is identical with the shape size of pressing ring (6).